112317-18-7 Acetamide, N-(3,7,8-trichlorodibenzo(b,e)(1,4)dioxin-2-yl)- N-(3,7,8-Trichlorodibenzo(b,e)(1,4)dioxin-2-yl)acetamide N-(3,7,8-trichlorodibenzo-p-dioxin-2-yl)acetamide